Actually, it seems very much similar to the iPhone,I loved new brightness Widget in this UI its very smooth and responsive.

4.The App locking and Settings in UI.

The past was swipe style now its look touch style anyways it’s nice.

5. Top Notch Notification Area.

Notification icon styles

The Icons are changed a little bit .its Attract the eye well even in charge.

VERDICT!

For the few days of usage, the phone looks so smooth are fast. One thing I have noticed is that some apps not working in this UI, Means if the app doesn’t support Fullscreen then it will definitely going to crash.The recent apps loading fast that’s very impressive. These are the few things I have noticed when using MIUI10.